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What are the tiny clusters of chambers f...

What are the tiny clusters of chambers for diffusion of gases in lungs?

A

Pleura

B

Alveolar sacs

C

Bronchioles

D

Lobes

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### Step-by-Step Solution: 1. **Understanding the Question**: The question asks for the tiny clusters of chambers in the lungs that are responsible for the diffusion of gases. 2. **Identifying the Structure**: In the lungs, the primary structures involved in gas exchange are known as alveoli. These are tiny air sacs that facilitate the exchange of oxygen and carbon dioxide. 3. **Describing Alveoli**: Alveoli are irregularly shaped, thin-walled structures that are highly vascularized. This means they have a rich blood supply, which is essential for the efficient transfer of gases. 4. **Function of Alveoli**: The main function of alveoli is to allow oxygen to diffuse into the blood and carbon dioxide to diffuse out of the blood. The thin walls of the alveoli enable this process to occur rapidly. 5. **Conclusion**: Therefore, the tiny clusters of chambers for diffusion of gases in the lungs are called **alveoli** (or alveolar sacs or air sacs). ### Final Answer: The tiny clusters of chambers for diffusion of gases in the lungs are called **alveoli**. ---
### Step-by-Step Solution: 1. **Understanding the Question**: The question asks for the tiny clusters of chambers in the lungs that are responsible for the diffusion of gases. 2. **Identifying the Structure**: In the lungs, the primary structures involved in gas exchange are known as alveoli. These are tiny air sacs that facilitate the exchange of oxygen and carbon dioxide. 3. **Describing Alveoli**: Alveoli are irregularly shaped, thin-walled structures that are highly vascularized. This means they have a rich blood supply, which is essential for the efficient transfer of gases. ...
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